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- /* Definitions of target machine for GNU compiler. Sun 68000/68020 version.
- Copyright (C) 1987, 1988 Free Software Foundation, Inc.
-
- This file is part of GNU CC.
-
- GNU CC is free software; you can redistribute it and/or modify
- it under the terms of the GNU General Public License as published by
- the Free Software Foundation; either version 1, or (at your option)
- any later version.
-
- GNU CC is distributed in the hope that it will be useful,
- but WITHOUT ANY WARRANTY; without even the implied warranty of
- MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- GNU General Public License for more details.
-
- You should have received a copy of the GNU General Public License
- along with GNU CC; see the file COPYING. If not, write to
- the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA. */
-
- /* This comment is here to see if it will keep Sun's cpp from dying. */
-
- #include "tm-m68k.h"
-
- /* See tm-m68k.h. 7 means 68020 with 68881. */
-
- #ifndef TARGET_DEFAULT
- #define TARGET_DEFAULT 7
- #endif
-
- /* Define __HAVE_FPA__ or __HAVE_68881__ in preprocessor,
- according to the -m flags.
- This will control the use of inline 68881 insns in certain macros.
- Also inform the program which CPU this is for. */
-
- #if TARGET_DEFAULT & 02
-
- /* -m68881 is the default */
- #define CPP_SPEC \
- "%{!msoft-float:%{mfpa:-D__HAVE_FPA__ }%{!mfpa:-D__HAVE_68881__ }}\
- %{!ansi:%{m68000:-Dmc68010}%{mc68000:-Dmc68010}%{!mc68000:%{!m68000:-Dmc68020}}}"
-
- #else
- #if TARGET_DEFAULT & 0100
-
- /* -mfpa is the default */
- #define CPP_SPEC \
- "%{!msoft-float:%{m68881:-D__HAVE_68881__ }%{!m68881:-D__HAVE_FPA__ }}\
- %{!ansi:%{m68000:-Dmc68010}%{mc68000:-Dmc68010}%{!mc68000:%{!m68000:-Dmc68020}}}"
-
- #else
-
- /* -msoft-float is the default */
- #define CPP_SPEC \
- "%{m68881:-D__HAVE_68881__ }%{mfpa:-D__HAVE_FPA__ }\
- %{!ansi:%{m68000:-Dmc68010}%{mc68000:-Dmc68010}%{!mc68000:%{!m68000:-Dmc68020}}}"
-
- #endif
- #endif
-
- /* Prevent error on `-sun3' option. */
-
- #define CC1_SPEC "%{sun3:}"
-
- /* -m68000 requires special flags to the assembler. */
-
- #define ASM_SPEC \
- "%{m68000:-mc68010}%{mc68000:-mc68010}%{!mc68000:%{!m68000:-mc68020}}"
-
- /* Names to predefine in the preprocessor for this target machine. */
-
- #define CPP_PREDEFINES "-Dmc68000 -Dsun -Dunix"
-
- /* STARTFILE_SPEC to include sun floating point initialization
- This is necessary (tr: Sun does it) for both the m68881 and the fpa
- routines.
- Note that includes knowledge of the default specs for gcc, ie. no
- args translates to the same effect as -m68881
- I'm not sure what would happen below if people gave contradictory
- arguments (eg. -msoft-float -mfpa) */
-
- #if TARGET_DEFAULT & 0100
- /* -mfpa is the default */
- #define STARTFILE_SPEC \
- "%{pg:gcrt0.o%s}%{!pg:%{p:mcrt0.o%s}%{!p:crt0.o%s}} \
- %{m68881:Mcrt1.o%s} \
- %{msoft-float:Fcrt1.o%s} \
- %{!m68881:%{!msoft-float:Wcrt1.o%s}}"
- #else
- #if TARGET_DEFAULT & 2
- /* -m68881 is the default */
- #define STARTFILE_SPEC \
- "%{pg:gcrt0.o%s}%{!pg:%{p:mcrt0.o%s}%{!p:crt0.o%s}} \
- %{mfpa:Wcrt1.o%s} \
- %{msoft-float:Fcrt1.o%s} \
- %{!mfpa:%{!msoft-float:Mcrt1.o%s}}"
- #else
- /* -msoft-float is the default */
- #define STARTFILE_SPEC \
- "%{pg:gcrt0.o%s}%{!pg:%{p:mcrt0.o%s}%{!p:crt0.o%s}} \
- %{m68881:Mcrt1.o%s} \
- %{mfpa:Wcrt1.o%s} \
- %{!m68881:%{!mfpa:Fcrt1.o%s}}"
- #endif
- #endif
-
- /* Specify library to handle `-a' basic block profiling. */
-
- /* Specify library to handle `-a' basic block profiling.
- Control choice of libm.a (if user says -lm)
- based on fp arith default and options. */
-
- #if TARGET_DEFAULT & 0100
- /* -mfpa is the default */
- #define LIB_SPEC "%{!p:%{!pg:-lc}}%{p:-lc_p}%{pg:-lc_p} \
- %{a:/usr/lib/bb_link.o} %{g:-lg} \
- %{msoft-float:-L/usr/lib/fsoft}%{m68881:-L/usr/lib/f68881}\
- %{!msoft_float:%{!m68881:-L/usr/lib/ffpa}}"
- #else
- #if TARGET_DEFAULT & 2
- /* -m68881 is the default */
- #define LIB_SPEC "%{!p:%{!pg:-lc}}%{p:-lc_p}%{pg:-lc_p} \
- %{a:/usr/lib/bb_link.o} %{g:-lg} \
- %{msoft-float:-L/usr/lib/fsoft}%{!msoft-float:%{!mfpa:-L/usr/lib/f68881}}\
- %{mfpa:-L/usr/lib/ffpa}"
- #else
- /* -msoft-float is the default */
- #define LIB_SPEC "%{!p:%{!pg:-lc}}%{p:-lc_p}%{pg:-lc_p} \
- %{a:/usr/lib/bb_link.o} %{g:-lg} \
- %{!m68881:%{!mfpa:-L/usr/lib/fsoft}}%{m68881:-L/usr/lib/f68881}\
- %{mfpa:-L/usr/lib/ffpa}"
- #endif
- #endif
-
- /* Provide required defaults for linker -e and -d switches.
- Also, it is hard to debug with shared libraries,
- so don't use them if going to debug. */
-
- #define LINK_SPEC "%{!e*:-e start} -dc -dp %{g:-Bstatic} %{static:-Bstatic} %{-Bstatic}"
-
- /* Every structure or union's size must be a multiple of 2 bytes. */
-
- #define STRUCTURE_SIZE_BOUNDARY 16
-
- /* This is BSD, so it wants DBX format. */
-
- #define DBX_DEBUGGING_INFO
-
- /* This is how to output an assembler line defining a `double' constant. */
-
- #undef ASM_OUTPUT_DOUBLE
- #define ASM_OUTPUT_DOUBLE(FILE,VALUE) \
- (isinf ((VALUE)) \
- ? fprintf (FILE, "\t.double 0r%s99e999\n", ((VALUE) > 0 ? "" : "-")) \
- : fprintf (FILE, "\t.double 0r%.20e\n", (VALUE)))
-
- /* This is how to output an assembler line defining a `float' constant. */
-
- #undef ASM_OUTPUT_FLOAT
- #define ASM_OUTPUT_FLOAT(FILE,VALUE) \
- (isinf ((VALUE)) \
- ? fprintf (FILE, "\t.single 0r%s99e999\n", ((VALUE) > 0 ? "" : "-")) \
- : fprintf (FILE, "\t.single 0r%.20e\n", (VALUE)))
-
- #undef ASM_OUTPUT_FLOAT_OPERAND
- #define ASM_OUTPUT_FLOAT_OPERAND(FILE,VALUE) \
- (isinf ((VALUE)) \
- ? fprintf (FILE, "#0r%s99e999", ((VALUE) > 0 ? "" : "-")) \
- : fprintf (FILE, "#0r%.9g", (VALUE)))
-
- #undef ASM_OUTPUT_DOUBLE_OPERAND
- #define ASM_OUTPUT_DOUBLE_OPERAND(FILE,VALUE) \
- (isinf ((VALUE)) \
- ? fprintf (FILE, "#0r%s99e999", ((VALUE) > 0 ? "" : "-")) \
- : fprintf (FILE, "#0r%.20g", (VALUE)))
-